Bench-vise



(Normaal.)

G. H. WOOD.

` BENCH vrs. No. 274,242. Patented Mar.20 ,1883.

N. Pains mumuinpm. wmimm n.1;

,To all whom it may concern Fig. II is a vertical section of the same at line vother side, near the edge,

UNITED lSTATES PATENT OFFICE.

BENCH-VISE.

SPECIFICATION forming partrof Letters Patent No. 274,242, dated March 20, 1883. Application filed December 30, 1882. (No model.)

Be it known that I, GEORGE H. Woon, ot Springfield, in the county ot' Hampden and State of Massachusetts, have invented a new and useful Improvement iu Bench-Vises, 'of

which the following is a specification.

The object of my invention is to provide a bench-vise which may be tilted to any desired angle and then secured, to facilitate operations upon the work held inthe vise; and Iaccomplish this by the mechanism substantially as hereinafter described, andillustrated in the accompanying drawings, in which- Figure I is a side view of avise made according to my invention, showing the tilting mech anism in vertical section at line A of Fig. II.

B of Fig. I; showing an eccentric retainingpin. Fig. III is a vertical section at the same line B,showing a conical screw retaining-pin. Fig. 1V is a vertical section at -the same line B, showing a tapered retaining-pin. Fig. V is an, end and side view of the fastening-swivel; and Fig. VI is a side view of the hemispherical support or ball upon which the vise rests, and to which it is secured, showing the groove and slot in which the swivel operates. l

In the drawings, 17 represents a circular base-plate or ring, whose` upper surface, near its outer edge, is made plain and smooth to receive the lower edge of a hollow semi-spherical support, 1, which, for convenience of description, Idenominate'the ball, which is provided with an internal boss, 8, in which is made a threaded hole to receive:` a screw bolt, 2, threaded atitslowerend,wthanut turned there on, by means of which the ball l is held securely* l in any desired horizontal position `on the ring or plate 17. I make an internal rib, 9, on the interior of the upper side of the ball, in which rib I makea curved slot or groove, 7 and just 4above this groove 7, I make a narrower slot, 3,

opening out through the upper side of the ball,

said slot extending from near the edge of thc over to the as shown clearly in Figs. I and III. `A swivel, 6, having a hole through its upper end, with a flange, 5, on its lower end, as shown in Fig.4 V, is inserted, with its flange 5 in the groove 7, and with its ball. at one side, in a direct `line end ofthe stationary jaw 10. In the extreme.

lower end of this stationary jaw I form a concave recess, 20, to lit the convex upper surface of the ball 1, with a vertical c'avity, 21, in the lower part of this stationary part, to receive, and into which projects, the upper end of the swivel, having the horizontal hole therein. In the lower part. of'this stationary part of the vise I make a horizontal hole to receive a retainingpin, 11, which, when in place in said hole, extends through the hole in the upper end of the swivel. This retaining-pin 11 may have the part 16, which is in the hole of the swivel when in place, made eccentric with the,

whichv is preferably made cylindrical, so thatas said pin is revolved other portionof the pin,

on its axis in the hole and the eccentric rises it will impingc against the upper part of the swivel in the hole, and cam the concave surface in the lower part of the vise down firmly upon the convex portion of the ball l, and hold the visermly in any position into which it may be tilted on the ball, as shown in dotted lines in Figs. I and III, the eccentric construction of the retaining-pin 11 being clearly shown in Figs. I and II.

j Instead of making the retaining-pin eccentric where it extends through the hole in the swivel, it may be made conical, as shown in Fig. III, with ascrew-thread made on the end of the pin, to be turned into a corresponding screw-thread made in the horizontal hole made in the stationary part of the vise, so that by turning the pin into the hole the conical part of said pin will be drawn more snuglyagainst the upper end of the swivel` in the hole, and the concave surface 20 be drawn snugly down upon the convex surface of the ball 1, and the vise be firmly held iu its tilted position, as `be fore; or a tapered hole, 13, may be made through the base of the vise, and a tapered reroo taining-pin, 11, be inserted through said hole and through the hole in the swivel, as shown clearly in Fig. l

By loosening the nut on the lower end of the bolt 2 the ball 1 may be revolved horizontally onf-the ring or plate 17, and by turning or loosening the retaining-pin l1 the base or whole vise may be revolved horizontally upon the convex surface ofthe ball, and may also be tilted into any desired position, or at any angle from a vertical position, as shown in dotted lines in Figs. I and III.

The swivel 6 is inserted by placing the flange 5 at its lower end into the opening to the groove 7 at either end, and by passing' the swivel upward its neck or smaller part it will enter the slot 3.

A small vertical annular flange, 22, on the upper side of the plate or ring` 17, just inside the lower edge ofthe ball 17 serves to keep the latter in place on said plate or ring.

Having thus described my invention, what I claim as new is- In an improved swivel bench-vise, a base.- plate, a semi-spherical support or ball,1, sup- 25 ported by and adapted to be revolved upon said base-plate, and provided with a circumferential groove, a swivel adapted to be contained Within and moved along said groove,

and provided with a transverse hole in its up- 3.o

per end, a vise-jaw Whose base is provided with a cavity to receive the upper end of said swivel, and With a transverse hole and a retaining-pin to be inserted into said hole in said base and through said swivel, substantially as 35 described. p

GEORGE H. WOOD.

Witnesses:

Gao. E. WARNER, 'KiT'rREDGE HAsKrNs. 

